CVE-2024-38776 in WP GoToWebinar Plugin
Summary
by MITRE • 08/02/2024
Cross-Site Request Forgery (CSRF) vulnerability in Martin Gibson WP GoToWebinar allows Cross-Site Scripting (XSS).This issue affects WP GoToWebinar: from n/a through 15.7.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 03/16/2025
This vulnerability represents a critical security flaw in the WP GoToWebinar plugin for WordPress systems, where a cross-site request forgery vulnerability has been identified that can be exploited to execute cross-site scripting attacks. The flaw exists within the plugin's handling of user requests and authentication mechanisms, creating a pathway for malicious actors to manipulate web browser behavior and inject malicious scripts into web pages viewed by other users. The vulnerability affects versions of the plugin from an unspecified starting point through version 15.7, indicating a potentially long-running exposure period that could have allowed extensive exploitation. The interconnected nature of CSRF and XSS vulnerabilities in this case demonstrates how a single weakness can compound into multiple attack vectors, making the impact significantly more severe than either vulnerability would be in isolation.
The technical implementation of this flaw stems from insufficient validation and sanitization of user-supplied input within the plugin's web forms and request processing components. When users interact with the plugin's administrative interfaces or frontend features, the system fails to properly verify the authenticity of requests originating from legitimate users versus malicious actors. This lack of proper anti-CSRF token validation creates an environment where attackers can craft malicious requests that appear to come from authenticated users, enabling them to perform unauthorized actions on behalf of victims. The XSS component is typically achieved by exploiting the CSRF vulnerability to inject malicious script code into web pages that are then executed in the browsers of other users who visit those pages. This exploitation pattern aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities, and CWE-79, which covers cross-site scripting flaws, demonstrating the dual nature of this security weakness.
The operational impact of this vulnerability extends far beyond simple data theft or manipulation, as it provides attackers with the capability to completely compromise user sessions and potentially gain administrative access to WordPress installations. Attackers could exploit this vulnerability to add new users, modify existing content, steal session cookies, or redirect users to malicious websites that could harvest sensitive information. The exposure period of the vulnerability across multiple versions suggests that numerous WordPress installations may be at risk, particularly those using older versions of the plugin that have not received timely updates or patches. Organizations relying on this plugin for webinar management and user engagement could face significant reputational damage, regulatory compliance issues, and potential financial losses due to unauthorized access to their systems and user data.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to the latest available version, which would typically include proper CSRF token implementation and XSS protection measures. System administrators should also implement additional security controls such as web application firewalls that can detect and block suspicious request patterns, input validation rules that filter out potentially malicious content, and regular security scanning to identify other potential vulnerabilities. The implementation of Content Security Policy headers can provide additional protection against XSS execution by restricting script sources and preventing unauthorized code injection. Security monitoring should be enhanced to detect unusual administrative activities or unauthorized user modifications that could indicate exploitation attempts. Organizations should also consider implementing multi-factor authentication for administrative accounts and conducting regular security audits of their WordPress installations to ensure all plugins and themes are properly maintained and up-to-date with security patches. This vulnerability exemplifies the importance of maintaining current security practices and demonstrates how seemingly isolated flaws can create cascading security risks that require comprehensive remediation approaches. The ATT&CK framework would categorize this as a privilege escalation and persistence technique, where attackers leverage CSRF to gain elevated privileges and then use XSS to maintain access or exfiltrate data, making it a particularly dangerous combination that requires immediate attention and remediation.